Oh yeah definitely, Starship troopers is a huge influence to both, I don’t disagree at all, the Starship troopers games seem to be a bit more serious and gritty in comparison to edf though. I’d say the gameplay in helldivers is very EDF also with the huge big swarms and over the top weapons.
The actual answer is that everyone should play Earth Defence Force (they just announced EDF 6), which I feel was a big inspiration for helldivers 2 bugs.